本课题针对多级孔分子筛负载的具有均一纳米尺度的金属/氧化物复合催化剂的构筑方法，以及纳米限域下活性组分相互作用、糠醛加氢选择性的调控等关键科学问题开展研究，以糠醛分子内C=C、C=O及醚键等官能团的选择活化为研究对象，通过“碱辅助主客体选择性化学反应”的制备方法，利用分子筛水解后原位产生的硅酸盐或铝酸盐碎片与金属盐之间的主客体选择性化学作用实现高负载量超细纳米粒子的制备。通过调变金属前驱体配位结构、硅源水解条件及溶胶性质等因素，获得具有不同纳米尺度的负载型复合金属纳米粒子催化剂。开展水热过程中催化材料的制备化学研究，揭示氧化物尺寸对催化剂表面电子性质及金属载体相互作用等的影响机制，阐明多级孔复合纳米催化材料活性中心尺寸对糠醛吸附模式的影响机理及选择加氢性能的构效关系，为发展具有潜在应用价值的糠醛绿色转化技术提供理论与实验基础。

The target of this study is to develop highly efficient heterogeneous bimetal catalyst which may control the reaction pathways in selective hydrogenation of C=C or C=O in furfural, while suppress the polymerization or coking of reaction intermediates. To this end, we will employ a “Base Assisted host-guest Selective Chemical Reaction” strategy which allows for the self-assembly of metal precursors with in situ formed silicate or aluminate fragments, thus leading to a hierarchical zeolite supported bimetal catalysts with finely tuned particle sizes. The intimate interaction between two metal components likely lead to unique metal-support interactions or electronic properties depending on the nature of metal species, therefore will show unprecedented activity and selectivity in furfural hydrogenation. This study will provide fundamental understanding on key aspects of catalytic materials synthesis and the structure-activity relationship in furfural adsorption and hydrogenation, which will in turn guide further research on developing promising catalysts for platform chemicals conversion.